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Blending between multiple-sketch chains and 2D sketches

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Blending between multiple-sketch chains and 2D sketches

Hello,

 

I'm looking for a recommendation on how to create the blend that goes between these sections? The general blend and swept blend features haven't been working for me as I'd expected. Section two is a chain of 4 sketches that use the prismatic feature facades as references to construct each of the four arcs. Section 1 and 3 are a circle and planar square, respectively. What would you recommend for this type of operation? 

Exodia_0-1586795620694.png

Exodia_1-1586795640809.png

Exodia_2-1586795690162.png

 

1 ACCEPTED SOLUTION

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Re: Blending between multiple-sketch chains and 2D sketches

The key to swept blends is to make sure there is a consistent # of entities in each sketch so you can match the blend points in the sections. To go from a rectangle to a circle section you must divide the circle into 4 arc segments and map the vertices in the blend feature.

 

Having said that I don't think blends are the best tool to get what you want if I interpret your pictures correctly. You would be better of building 4 sided boundary blends to fill in that geometry.

 

See enclosed pic for one way to do it.

 

surf patch.jpg

View solution in original post

5 REPLIES 5
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Re: Blending between multiple-sketch chains and 2D sketches

The key to swept blends is to make sure there is a consistent # of entities in each sketch so you can match the blend points in the sections. To go from a rectangle to a circle section you must divide the circle into 4 arc segments and map the vertices in the blend feature.

 

Having said that I don't think blends are the best tool to get what you want if I interpret your pictures correctly. You would be better of building 4 sided boundary blends to fill in that geometry.

 

See enclosed pic for one way to do it.

 

surf patch.jpg

View solution in original post

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Re: Blending between multiple-sketch chains and 2D sketches

This is what i was looking for originally and was able to carry it out. great explanation and i see where my gap in understanding was. i needed to create more arcs (hence more vertices) for the individual faces to blend to. Thank you.

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Re: Blending between multiple-sketch chains and 2D sketches

Depends on what you want to achieve, a simple revolve cut may give you what you want:revolve.jpg

 Attached creo4 file for you reference.

 

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Re: Blending between multiple-sketch chains and 2D sketches

it's crazy how hard i make it on myself sometimes. great solution!

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Re: Blending between multiple-sketch chains and 2D sketches

If you care about the side curves, you may use multi-edge blend:

 

blnd.jpg

 Attached Creo4 file.

 

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